const path = require('path');
const crypto = require('crypto');
module.exports = {
	resource: path.join(think.ROOT_PATH, 'www'),
	/**
	 * ip转数字
	 */
	ip2int(ip) {
		let num = 0;
		ip = ip.split('.');
		num = Number(ip[0]) * 256 * 256 * 256 + Number(ip[1]) * 256 * 256 + Number(ip[2]) * 256 + Number(ip[3]);
		num = num >>> 0;
		return num;
	},
	/**
	 * 数字转ip
	 */
	int2ip(num) {
		let str;
		let tt = new Array();
		tt[0] = (num >>> 24) >>> 0;
		tt[1] = ((num << 8) >>> 24) >>> 0;
		tt[2] = (num << 16) >>> 24;
		tt[3] = (num << 24) >>> 24;
		str = String(tt[0]) + '.' + String(tt[1]) + '.' + String(tt[2]) + '.' + String(tt[3]);
		return str;
	},
	randomString(len) {
		len = len || 6;
		let chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';
		/****默认去掉了容易混淆的字符oOLl,9gq,Vv,Uu,I1****/
		let maxPos = chars.length;
		let pwd = '';
		for(i = 0; i < len; i++) {
			pwd += chars.charAt(Math.floor(Math.random() * maxPos));
		}
		return pwd;
	},
	toHex(num) {
		let alphabet = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
		var base = alphabet.length;
		var digits = [];

		do {
			digits.push(num % base); // TODO handle negatives properly?
			num = Math.floor(num / base);
		} while (num > 0);

		var chars = [];
		while(digits.length) {
			chars.push(alphabet[digits.pop()]);
		}
		return chars.join('');

	},
	getInstance(data, tmpl) {
		let is_object = false;
		if(typeof(tmpl) == 'object') {

			tmpl = JSON.stringify(tmpl);
			is_object = true;
		}

		for(let key in data) {
			let regx = new RegExp('\\$\\{' + key + '\\}', 'gi');
			if(regx.test(tmpl)) {
				tmpl = tmpl.replace(regx, data[key]);
			}

		}
		return is_object ? JSON.parse(tmpl) : tmpl
	},

	emojiFilter(str) {
		if(!str) {
			return "";
		}

		str = str.replace(/[^0-9a-zA-Z\u4e00-\u9fa5\s\._\-—,\/、\!\?;:"'\+=\(\)@\$#%\^&\*~<>\{\}\[\|\]]/g, '—');

		return str;

	},
	appModel(modelName = '', appName = '', config = think.config('model.mysql'), prefix = 'app_') {
		try {
			const Cls = think.app.controllers[`app/${appName}/model/${modelName}`];
			return new Cls(`${modelName}`, config);
		} catch(e) {
			return think.model(`${prefix}${modelName}`);
		}
	},
	appService(name = '', ser = '', ...args) {
		const Cls = think.app.controllers[`app/${ser}/service/${name}`];
		if(think.isFunction(Cls)) return new Cls(...args);
		return Cls;
	},
	lastMonthBegin() {
		let date = new Date();
		let year = date.getFullYear();
		let month = date.getMonth();
		if(month == 0) {
			year = year - 1;
			month = 11;
		}else{
			month = month -1
		}
		date.setFullYear(year,month,1);
		date.setHours(0, 0, 0, 0);
		return date.getTime();
		

	},
	thisMonthBegin() {
		let date = new Date();
		date.setDate(1);
		date.setHours(0, 0, 0, 0);
		return date.getTime();

	},
	getip() {
		//国内城市IP段
		let ips = '58.14.0.0,58.16.0.0,58.24.0.0,58.30.0.0,58.32.0.0,58.66.0.0,58.68.128.0,58.82.0.0,58.87.64.0,58.99.128.0,58.100.0.0,58.116.0.0,58.128.0.0,58.144.0.0,58.154.0.0,58.192.0.0,58.240.0.0,59.32.0.0,59.64.0.0,59.80.0.0,59.107.0.0,59.108.0.0,59.151.0.0,59.155.0.0,59.172.0.0,59.191.0.0,59.191.240.0,59.192.0.0,60.0.0.0,60.55.0.0,60.63.0.0,60.160.0.0,60.194.0.0,60.200.0.0,60.208.0.0,60.232.0.0,60.235.0.0,60.245.128.0,60.247.0.0,60.252.0.0,60.253.128.0,60.255.0.0,61.4.80.0,61.4.176.0,61.8.160.0,61.28.0.0,61.29.128.0,61.45.128.0,61.47.128.0,61.48.0.0,61.87.192.0,61.128.0.0,61.232.0.0,61.236.0.0,61.240.0.0,114.28.0.0,114.54.0.0,114.60.0.0,114.64.0.0,114.68.0.0,114.80.0.0,116.1.0.0,116.2.0.0,116.4.0.0,116.8.0.0,116.13.0.0,116.16.0.0,116.52.0.0,116.56.0.0,116.58.128.0,116.58.208.0,116.60.0.0,116.66.0.0,116.69.0.0,116.70.0.0,116.76.0.0,116.89.144.0,116.90.184.0,116.95.0.0,116.112.0.0,116.116.0.0,116.128.0.0,116.192.0.0,116.193.16.0,116.193.32.0,116.194.0.0,116.196.0.0,116.198.0.0,116.199.0.0,116.199.128.0,116.204.0.0,116.207.0.0,116.208.0.0,116.212.160.0,116.213.64.0,116.213.128.0,116.214.32.0,116.214.64.0,116.214.128.0,116.215.0.0,116.216.0.0,116.224.0.0,116.242.0.0,116.244.0.0,116.248.0.0,116.252.0.0,116.254.128.0,116.255.128.0,117.8.0.0,117.21.0.0,117.22.0.0,117.24.0.0,117.32.0.0,117.40.0.0,117.44.0.0,117.48.0.0,117.53.48.0,117.53.176.0,117.57.0.0,117.58.0.0,117.59.0.0,117.60.0.0,117.64.0.0,117.72.0.0,117.74.64.0,117.74.128.0,117.75.0.0,117.76.0.0,117.80.0.0,117.100.0.0,117.103.16.0,117.103.128.0,117.106.0.0,117.112.0.0,117.120.64.0,117.120.128.0,117.121.0.0,117.121.128.0,117.121.192.0,117.122.128.0,117.124.0.0,117.128.0.0,118.24.0.0,118.64.0.0,118.66.0.0,118.67.112.0,118.72.0.0,118.80.0.0,118.84.0.0,118.88.32.0,118.88.64.0,118.88.128.0,118.89.0.0,118.91.240.0,118.102.16.0,118.112.0.0,118.120.0.0,118.124.0.0,118.126.0.0,118.132.0.0,118.144.0.0,118.178.0.0,118.180.0.0,118.184.0.0,118.192.0.0,118.212.0.0,118.224.0.0,118.228.0.0,118.230.0.0,118.239.0.0,118.242.0.0,118.244.0.0,118.248.0.0,119.0.0.0,119.2.0.0,119.2.128.0,119.3.0.0,119.4.0.0,119.8.0.0,119.10.0.0,119.15.136.0,119.16.0.0,119.18.192.0,119.18.208.0,119.18.224.0,119.19.0.0,119.20.0.0,119.27.64.0,119.27.160.0,119.27.192.0,119.28.0.0,119.30.48.0,119.31.192.0,119.32.0.0,119.40.0.0,119.40.64.0,119.40.128.0,119.41.0.0,119.42.0.0,119.42.136.0,119.42.224.0,119.44.0.0,119.48.0.0,119.57.0.0,119.58.0.0,119.59.128.0,119.60.0.0,119.62.0.0,119.63.32.0,119.75.208.0,119.78.0.0,119.80.0.0,119.84.0.0,119.88.0.0,119.96.0.0,119.108.0.0,119.112.0.0,119.128.0.0,119.144.0.0,119.148.160.0,119.161.128.0,119.162.0.0,119.164.0.0,119.176.0.0,119.232.0.0,119.235.128.0,119.248.0.0,119.253.0.0,119.254.0.0,120.0.0.0,120.24.0.0,120.30.0.0,120.32.0.0,120.48.0.0,120.52.0.0,120.64.0.0,120.72.32.0,120.72.128.0,120.76.0.0,120.80.0.0,120.90.0.0,120.92.0.0,120.94.0.0,120.128.0.0,120.136.128.0,120.137.0.0,120.192.0.0,121.0.16.0,121.4.0.0,121.8.0.0,121.16.0.0,121.32.0.0,121.40.0.0,121.46.0.0,121.48.0.0,121.51.0.0,121.52.160.0,121.52.208.0,121.52.224.0,121.55.0.0,121.56.0.0,121.58.0.0,121.58.144.0,121.59.0.0,121.60.0.0,121.68.0.0,121.76.0.0,121.79.128.0,121.89.0.0,121.100.128.0,121.101.208.0,121.192.0.0,121.201.0.0,121.204.0.0,121.224.0.0,121.248.0.0,121.255.0.0,122.0.64.0,122.0.128.0,122.4.0.0,122.8.0.0,122.48.0.0,122.49.0.0,122.51.0.0,122.64.0.0,122.96.0.0,122.102.0.0,122.102.64.0,122.112.0.0,122.119.0.0,122.136.0.0,122.144.128.0,122.152.192.0,122.156.0.0,122.192.0.0,122.198.0.0,122.200.64.0,122.204.0.0,122.224.0.0,122.240.0.0,122.248.48.0,123.0.128.0,123.4.0.0,123.8.0.0,123.49.128.0,123.52.0.0,123.56.0.0,123.64.0.0,123.96.0.0,123.98.0.0,123.99.128.0,123.100.0.0,123.101.0.0,123.103.0.0,123.108.128.0,123.108.208.0,123.112.0.0,123.128.0.0,123.136.80.0,123.137.0.0,123.138.0.0,123.144.0.0,123.160.0.0,123.176.80.0,123.177.0.0,123.178.0.0,123.180.0.0,123.184.0.0,123.196.0.0,123.199.128.0,123.206.0.0,123.232.0.0,123.242.0.0,123.244.0.0,123.249.0.0,123.253.0.0,124.6.64.0,124.14.0.0,124.16.0.0,124.20.0.0,124.28.192.0,124.29.0.0,124.31.0.0,124.40.112.0,124.40.128.0,124.42.0.0,124.47.0.0,124.64.0.0,124.66.0.0,124.67.0.0,124.68.0.0,124.72.0.0,124.88.0.0,124.108.8.0,124.108.40.0,124.112.0.0,124.126.0.0,124.128.0.0,124.147.128.0,124.156.0.0,124.160.0.0,124.172.0.0,124.192.0.0,124.196.0.0,124.200.0.0,124.220.0.0,124.224.0.0,124.240.0.0,124.240.128.0,124.242.0.0,124.243.192.0,124.248.0.0,124.249.0.0,124.250.0.0,124.254.0.0,125.31.192.0,125.32.0.0,125.58.128.0,125.61.128.0,125.62.0.0,125.64.0.0,125.96.0.0,125.98.0.0,125.104.0.0,125.112.0.0,125.169.0.0,125.171.0.0,125.208.0.0,125.210.0.0,125.213.0.0,125.214.96.0,125.215.0.0,125.216.0.0,125.254.128.0,134.196.0.0,159.226.0.0,161.207.0.0,162.105.0.0,166.111.0.0,167.139.0.0,168.160.0.0,169.211.1.0,192.83.122.0,192.83.169.0,192.124.154.0,192.188.170.0,198.17.7.0,202.0.110.0,202.0.176.0,202.4.128.0,202.4.252.0,202.8.128.0,202.10.64.0,202.14.88.0,202.14.235.0,202.14.236.0,202.14.238.0,202.20.120.0,202.22.248.0,202.38.0.0,202.38.64.0,202.38.128.0,202.38.136.0,202.38.138.0,202.38.140.0,202.38.146.0,202.38.149.0,202.38.150.0,202.38.152.0,202.38.156.0,202.38.158.0,202.38.160.0,202.38.164.0,202.38.168.0,202.38.176.0,202.38.184.0,202.38.192.0,202.41.152.0,202.41.240.0,202.43.144.0,202.46.32.0,202.46.224.0,202.60.112.0,202.63.248.0,202.69.4.0,202.69.16.0,202.70.0.0,202.74.8.0,202.75.208.0,202.85.208.0,202.90.0.0,202.90.224.0,202.90.252.0,202.91.0.0,202.91.128.0,202.91.176.0,202.91.224.0,202.92.0.0,202.92.252.0,202.93.0.0,202.93.252.0,202.95.0.0,202.95.252.0,202.96.0.0,202.112.0.0,202.120.0.0,202.122.0.0,202.122.32.0,202.122.64.0,202.122.112.0,202.122.128.0,202.123.96.0,202.124.24.0,202.125.176.0,202.127.0.0,202.127.12.0,202.127.16.0,202.127.40.0,202.127.48.0,202.127.112.0,202.127.128.0,202.127.160.0,202.127.192.0,202.127.208.0,202.127.212.0,202.127.216.0,202.127.224.0,202.130.0.0,202.130.224.0,202.131.16.0,202.131.48.0,202.131.208.0,202.136.48.0,202.136.208.0,202.136.224.0,202.141.160.0,202.142.16.0,202.143.16.0,202.148.96.0,202.149.160.0,202.149.224.0,202.150.16.0,202.152.176.0,202.153.48.0,202.158.160.0,202.160.176.0,202.164.0.0,202.164.25.0,202.165.96.0,202.165.176.0,202.165.208.0,202.168.160.0,202.170.128.0,202.170.216.0,202.173.8.0,202.173.224.0,202.179.240.0,202.180.128.0,202.181.112.0,202.189.80.0,202.192.0.0,203.18.50.0,203.79.0.0,203.80.144.0,203.81.16.0,203.83.56.0,203.86.0.0,203.86.64.0,203.88.32.0,203.88.192.0,203.89.0.0,203.90.0.0,203.90.128.0,203.90.192.0,203.91.32.0,203.91.96.0,203.91.120.0,203.92.0.0,203.92.160.0,203.93.0.0,203.94.0.0,203.95.0.0,203.95.96.0,203.99.16.0,203.99.80.0,203.100.32.0,203.100.80.0,203.100.96.0,203.100.192.0,203.110.160.0,203.118.192.0,203.119.24.0,203.119.32.0,203.128.32.0,203.128.96.0,203.130.32.0,203.132.32.0,203.134.240.0,203.135.96.0,203.135.160.0,203.142.219.0,203.148.0.0,203.152.64.0,203.156.192.0,203.158.16.0,203.161.192.0,203.166.160.0,203.171.224.0,203.174.7.0,203.174.96.0,203.175.128.0,203.175.192.0,203.176.168.0,203.184.80.0,203.187.160.0,203.190.96.0,203.191.16.0,203.191.64.0,203.191.144.0,203.192.0.0,203.196.0.0,203.207.64.0,203.207.128.0,203.208.0.0,203.208.16.0,203.208.32.0,203.209.224.0,203.212.0.0,203.212.80.0,203.222.192.0,203.223.0.0,210.2.0.0,210.5.0.0,210.5.144.0,210.12.0.0,210.14.64.0,210.14.112.0,210.14.128.0,210.15.0.0,210.15.128.0,210.16.128.0,210.21.0.0,210.22.0.0,210.23.32.0,210.25.0.0,210.26.0.0,210.28.0.0,210.32.0.0,210.51.0.0,210.52.0.0,210.56.192.0,210.72.0.0,210.76.0.0,210.78.0.0,210.79.64.0,210.79.224.0,210.82.0.0,210.87.128.0,210.185.192.0,210.192.96.0,211.64.0.0,211.80.0.0,211.96.0.0,211.136.0.0,211.144.0.0,211.160.0.0,218.0.0.0,218.56.0.0,218.64.0.0,218.96.0.0,218.104.0.0,218.108.0.0,218.185.192.0,218.192.0.0,218.240.0.0,218.249.0.0,219.72.0.0,219.82.0.0,219.128.0.0,219.216.0.0,219.224.0.0,219.242.0.0,219.244.0.0,220.101.192.0,220.112.0.0,220.152.128.0,220.154.0.0,220.160.0.0,220.192.0.0,220.231.0.0,220.231.128.0,220.232.64.0,220.234.0.0,220.242.0.0,220.248.0.0,220.252.0.0,221.0.0.0,221.8.0.0,221.12.0.0,221.12.128.0,221.13.0.0,221.14.0.0,221.122.0.0,221.129.0.0,221.130.0.0,221.133.224.0,221.136.0.0,221.172.0.0,221.176.0.0,221.192.0.0,221.196.0.0,221.198.0.0,221.199.0.0,221.199.128.0,221.199.192.0,221.199.224.0,221.200.0.0,221.208.0.0,221.224.0.0,222.16.0.0,222.32.0.0,222.64.0.0,222.125.0.0,222.126.128.0,222.128.0.0,222.160.0.0,222.168.0.0,222.176.0.0,222.192.0.0,222.240.0.0,222.248.0.0';
		let arr = ips.split(",");
		let rnd = Math.round(Math.random() * arr.length);
		let ip = arr[rnd];
		let ar = ip.split(".");

		for(let i = 0; i < ar.length; i++) {
			if(ar[i] == 0) {
				ar[i] = Math.round(Math.random() * 255);
			}
		}
		ip = ar.join(".");
		return ip;
	},
	base64(input) {
		const _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
		var output = "";
		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
		var i = 0;
		input = this.utf8(input);
		while(i < input.length) {
			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);
			enc1 = chr1 >> 2;
			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
			enc4 = chr3 & 63;
			if(isNaN(chr2)) {
				enc3 = enc4 = 64;
			} else if(isNaN(chr3)) {
				enc4 = 64;
			}
			output = output +
				_keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
				_keyStr.charAt(enc3) + _keyStr.charAt(enc4);
		}
		return output;
	},
	utf8(string) {
		string = string.replace(/\r\n/g, "\n");
		var utftext = "";
		for(var n = 0; n < string.length; n++) {
			var c = string.charCodeAt(n);
			if(c < 128) {
				utftext += String.fromCharCode(c);
			} else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			} else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}

		}
		return utftext;
	},
//爱库存请求签名
	sign(args) {

		let keys = Object.keys(args);
		keys = keys.sort()
		let newArgs = {};
		keys.forEach(function(key) {
			newArgs[key] = args[key];
		});

		let str = '';
		for(let k in newArgs) {
			str += '&' + k + '=' + newArgs[k];
		}
		str = str.substr(1);
		console.log(str)


		let r = think.base64(str);
		console.log(r)
		let md5 = crypto.createHash('md5').update(r).digest("hex");
	
		return md5.toString().toUpperCase();

	}
};